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Magnesium-palm kernel shell biochar composite for effective methylene blue removal: optimization via response surface methodology
Nur Hanani Hasana1, Rafeah Wahi2, Yusralina Yusof3, Nabisab Mujawar Mubarak4.
This study investigates the properties and potential application of Mg-PKS biochar composite for methylene blue solution (MB) adsorption. The Mg-PKS biochar composite was developed from palm kernel shell biochar via steam activation followed by MgSO4 treatment and carbonization. The effect of process parameters such as solution pH (4-10), contact time (30-90 min) and adsorbent dosage (0.1-0.5 g) were investigated via central composite design, response surface methodology. Results revealed that the Mg-PKS biochar composite has irregular shapes pore structure from SEM analysis, a surface area of 674 m2g-1 and average pore diameters of 7.2195 µm based on BET analysis. RSM results showed that the optimum adsorption of MB onto Mg-biochar composite was at pH 10, 30 min contact time and 0.5 g/100 mL dosage with a removal efficiency of 98.50%. In conclusion, Mg treatment is a potential alternative to other expensive chemical treatment methods for biochar upgrading to the adsorbent.
Affiliation:
- University Malaysia Sarawak, 94300 Kota Samarahan, Sarawak, Malaysia, Malaysia
- Curtin University Malaysia, 98009 Miri, Sarawak, Malaysia, Malaysia
- Curtin University Malaysia, 98009 Miri, Sarawak, Malaysia, Malaysia
- Curtin University Malaysia, 98009 Miri, Sarawak, Malaysia, Malaysia
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Indexation |
Indexed by |
MyJurnal (2021) |
H-Index
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3 |
Immediacy Index
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0.000 |
Rank |
0 |
Indexed by |
Scopus 2020 |
Impact Factor
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CiteScore (1.1) |
Rank |
Q3 (Agricultural and Biological Sciences (all)) Q3 (Environmental Science (all)) Q3¬¬- (Computer Science (all)) Q3 (Chemical Engineering (all)) |
Additional Information |
SJR (0.174) |
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